Results 301 to 310 of about 4,158,929 (341)

Finite-temperature field theory

Contemporary Physics, 1990
Abstract A review of Finite-Temperature Field Theory. By Joseph I. Kapusta. (Cambridge University Press, 1989.) [Pp. x + 219.1 £35·00. ISBN 0 521 35155 3. Scope: Textbook. Level: Postgraduate.
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High temperature mechanical field-cycling setup

Journal of Magnetic Resonance, 2008
A new design of a mechanical field-cycling setup, operating in the wide temperature range up to 1200 K has been implemented. The sample is moved by a stepping motor in the stray field of a superconducting magnet inside a furnace of homogeneous temperature profile.
H, Stork, M, Ditter, H, Plösser, A F, Privalov, F, Fujara   +4 more
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Particle fields at finite temperature from string field theory

Physical Review D, 1991
An investigation is made into the finite-temperature behavior of a class of scalar field theories derived from string field theory. The fields {tilde {phi}} are the lowest-order fields in a level truncation of the open bosonic string and have momentum-dependent couplings. Expressions for the one-loop effective potential for {phi}{sup 3} and {tilde {phi}
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Temperature Field Simulation Analysis of High Temperature Box

Advanced Materials Research, 2011
High temperature box is wildly used in many fields. Alone with the increasing of the requirement temperature, the temperature of it becomes more and more high. But it is difficult to test the temperature when the temperature is greater than 2000°C. In this paper, the thermal field of high temperature box is analyzed by finite element method, the result
Wen Xue Qian, Xiao Wei Yin, Li Yang Xie
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Correlation Models for Temperature Fields

Journal of Climate, 2011
Abstract This paper presents derivations of some analytical forms for spatial correlations of evolving random fields governed by a white-noise-driven damped diffusion equation that is the analog of autoregressive order 1 in time and autoregressive order 2 in space. The study considers the two-dimensional plane and the surface of a sphere,
North, Gerald R., Wang, Jue, Genton, Marc G.   +2 more
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String field theory at finite temperature

Physical Review D, 1987
We present a real-time formalism enabling us to compute statistical averages of various quantum string field correlation functions and scattering amplitudes in the context of perturbation theory and functional methods. Second quantization of the string fields is carried out in the path-integral representation.
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Temperature dependences in field ionization

International Journal of Mass Spectrometry and Ion Physics, 1973
A model of field ionization which describes a general expression for the ionization coefficient is presented. Simplifications of this expression result in approximate formula for the ionization coefficient as a known function of physically evident variables and parameters.
V.A. Pokrovsky, I.V. Goldenfeld, E.N. Korol   +2 more
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Temperature Field in Material

2004
Deformation of materials is carried out at room temperature and at elevated tempe-ratures. At elevated temperatures, recovery and recrystallization take place, and the flow curves depend strongly on such material parameters as temperature or strain rate.
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Temperature control of a distributed collector field

Solar Energy, 1995
Abstract In this paper an investigation of a temperature control with mass flow manipulation for a distributed field of parabolic trough collectors is described. The dynamics of a collector loop are modelled by a set of nonlinear first-order hyperbolic partial differential equations. A computer model is set up to calculate the closed-loop response of
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IGR REACTOR TEMPERATURE FIELD DYNAMICS

NNC RK Bulletin, 2018
The article provides results of calculation studies of the IGR reactor temperature field under long-term and short start-up with integral power of 5.2 GW with subsequent cooling down of the reactor. It is shown that during long start-up which takes more than one hour it is possible to exceed the declared maximum integrated power of the reactor without ...
B. Ye. Bekmagambetova, A. D. Vurim, R. A. Irkimbekov, A. S. Surayev   +3 more
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